package com.ygnn.reggie.service.Impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ygnn.reggie.common.CustomException;
import com.ygnn.reggie.common.R;
import com.ygnn.reggie.entity.Category;
import com.ygnn.reggie.entity.Dish;
import com.ygnn.reggie.entity.Setmeal;
import com.ygnn.reggie.mapper.CategoryMapper;
import com.ygnn.reggie.service.CategoryService;
import com.ygnn.reggie.service.DishService;
import com.ygnn.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements  CategoryService{


    @Autowired
    private DishService dishService;
    @Autowired
    private SetmealService setmealService;
    @Override
    public void remove(Long ids) {
//         查询有没有关联菜品信息
        LambdaQueryWrapper<Dish> dishLambdaQueryWrapper =new LambdaQueryWrapper<>();
        dishLambdaQueryWrapper.eq(Dish::getCategoryId,ids);
        int count1 = dishService.count(dishLambdaQueryWrapper);


        if (count1>0){
//            已经关联，抛出异常
            throw new CustomException("当前分类下关联了菜品，不能删除");
        }


//        查询有没有关联套餐信息
        LambdaQueryWrapper<Setmeal> setmealLambdaQueryWrapper =new LambdaQueryWrapper<>();
        setmealLambdaQueryWrapper.eq(Setmeal::getCategoryId,ids);
        int count2 = setmealService.count(setmealLambdaQueryWrapper);


        if (count2>0){
//            已经关联，抛出异常
            throw new CustomException("当前分类下关联了套餐，不能删除");
        }

        super.removeById(ids);

    }
}
